We have investigated the mechanics of metamaterials that include bistable elements. These types of metamaterials have excellent impact protection/shock aborption capabilities. In our research, we have been interested in controlling how these metamaterials are deforming in response to an external stimulus, for applications as reconfigurable metamaterials with tunable properties. Some of this research was conducted in collaboration with Dr. Jerry Qi‘s group at Georgia Tech. We have demonstrated that variations in the geometric pararameters can be used to obtain a deterministic response. We have also shown that the temperature-dependent viscoelastic properties of polymers can be harnessed to control how these metamaterials deform.
Publications
- Che, K., Yuan, C., Wu, J., Qi, H. J., and Meaud, J., 2017, 3D-printed multistable mechanical metamaterials with a deterministic deformation sequence, Journal of Applied Mechanics , 84(1)-011004:01-10
- Che, K., Yuan, C., Qi, H., and Meaud, J., 2018, Viscoelastic multistable architected materials with temperature-dependent snapping sequence, Soft Matter, 14:2492-2499
- Che, K., Rouleau, M., Meaud, J., 2019, Temperature-tunable time-dependent snapping of viscoelastic metastructures with snap-through instabilities, Extreme Mechanics Letters, in press